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Class Information
Number: 351/161
Name: Optics: eye examining, vision testing and correcting > Spectacles and eyeglasses > Ophthalmic lenses or blanks > Eye contact type > Multifocal
Description: Subject matter wherein the contact lens comprises two zones of different focal length, one zone to correct the distance vision and another zone to correct the reading vision.










Patents under this class:
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Patent Number Title Of Patent Date Issued
6457826 Multifocal aspheric lens Oct. 1, 2002
6450642 Lenses capable of post-fabrication power modification Sep. 17, 2002
6435681 Multifocal ophthalmic lens with reduced halo size Aug. 20, 2002
6409340 Multifocal ophthalmic lens Jun. 25, 2002
6409339 Multifocal lens, and method for production thereof Jun. 25, 2002
6390622 Contact lens or intraocular lens having near and distance zones May. 21, 2002
6390621 Manufacturing of positive power ophthalmic lenses May. 21, 2002
6364483 Simultaneous multifocal contact lens and method of utilizing same for treating visual disorders Apr. 2, 2002
6361165 Flyglasses Mar. 26, 2002
6357876 Multifocal ocular lens having intermediate-distance vision correction region formed in central part of vision correction area Mar. 19, 2002
6357875 Artificial lens including a lens system having eccentric axes for use in an eye having an enlarged pupil and method Mar. 19, 2002
6322213 Progressive multifocal contact lens suitable for compensating presbyopia Nov. 27, 2001
6310215 Pyrazolone compounds and ophthalmic plastic lens using the same Oct. 30, 2001
6302540 Method for the design of multifocal optical elements Oct. 16, 2001
6286956 Multifocal ocular lens including intermediate vision correction region between near and distant vision correction regions Sep. 11, 2001
6283595 Pinhole presbyopic contact lenses Sep. 4, 2001
6270220 Multifocal lens Aug. 7, 2001
6260966 Multifocal ocular lens Jul. 17, 2001
6250757 Hybrid refractive birefringent multifocal ophthalmic lenses Jun. 26, 2001
6244709 Multifocal lens article Jun. 12, 2001
6221105 Multifocal ophthalmic lens Apr. 24, 2001
6217171 Composite ophthamic lens Apr. 17, 2001
6210005 Multifocal ophthalmic lens with reduced halo size Apr. 3, 2001
6199982 Presbyopia correction contact lens Mar. 13, 2001
6196685 Method of designing and fitting multifocal lenses taking into account material properties of the lenses Mar. 6, 2001
6186625 Multifocal ophthalmic lens Feb. 13, 2001
6179420 Multifocal ophthalmic lenses Jan. 30, 2001
6176580 Method of designing and fitting contact lenses taking into account material properties of the lenses Jan. 23, 2001
6176579 Bifocal contact lens with toric transition Jan. 23, 2001
6142625 Toric multifocal lens having different astigmatism corrective optical powers in respective vision correction regions, and method of producing the same Nov. 7, 2000
6139147 Actively controllable multifocal lens Oct. 31, 2000
6139145 Ophthalmic optical element incorporating a holographic element and use of same in cases of central field loss Oct. 31, 2000
6120148 Diffractive lens Sep. 19, 2000
6116735 Contact lens Sep. 12, 2000
6109749 Soft bifocal contact lenses Aug. 29, 2000
6096077 Deformable intraocular corrective lens Aug. 1, 2000
6092899 Multifocal lens, and method for production thereof Jul. 25, 2000
6082856 Methods for designing and making contact lenses having aberration control and contact lenses made thereby Jul. 4, 2000
6030077 Multifocal ocular lens having intermediate region with continuously varying optical power Feb. 29, 2000
6017121 Multifocal artificial ocular lens with a transparency varying with illumination Jan. 25, 2000
6011081 Contact lens having improved dimensional stability Jan. 4, 2000
6007201 Multifocal contact lens Dec. 28, 1999
5997140 Actively controllable multifocal lens Dec. 7, 1999
5980040 Pinhole lens and contact lens Nov. 9, 1999
5971542 Multifocal contact lens Oct. 26, 1999
5969790 Multi prism image enhancing lens system and method of making same Oct. 19, 1999
5963297 Orthokeratology contact lens and method therefor Oct. 5, 1999
5929969 Multifocal ophthalmic lens Jul. 27, 1999
5919229 Multifocal opthalmic lens Jul. 6, 1999
5912719 Contact lens with palpebral bosses Jun. 15, 1999

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